1 /* { dg-do compile } */ 2 /* { dg-options "-O -fdump-tree-fre1" } */ 3 4 int i; foo(int b)5 int foo (int b) 6 { 7 int j; 8 i = 1; 9 if (b) 10 j = i; 11 return i - j; 12 } 13 14 /* { dg-final { scan-tree-dump "return 0;" "fre1" } } */ 15